18870382467328 has 108 divisors (see below), whose sum is σ = 43885150964172. Its totient is φ = 8074686627840.

The previous prime is 18870382467319. The next prime is 18870382467397. The reversal of 18870382467328 is 82376428307881.

It can be written as a sum of positive squares in 2 ways, for example, as 16448150919424 + 2422231547904 = 4055632^2 + 1556352^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6867276 + ... + 9214132.

It is an arithmetic number, because the mean of its divisors is an integer number (406343990409).

Almost surely, 2^{18870382467328} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18870382467328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21942575482086).

18870382467328 is an abundant number, since it is smaller than the sum of its proper divisors (25014768496844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18870382467328 is an equidigital number, since it uses as much as digits as its factorization.

18870382467328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347528 (or 2347507 counting only the distinct ones).

The product of its (nonzero) digits is 173408256, while the sum is 67.

The spelling of 18870382467328 in words is "eighteen trillion, eight hundred seventy billion, three hundred eighty-two million, four hundred sixty-seven thousand, three hundred twenty-eight".